Nut-lock.



H. HALL & J. T. WRIGHT.

NUT LOOK.

APPLICATION FILED APR.24, 1913.

1,081,499. Patented Dec. 16, 1913. I

WITNESSES v HOLLY HRH. 0 INVENT0RS 4 HM T. WRlGrHT.

Jo W Atlorr zey UNTTEE TAT% PATNT @FFTQE.

HOLLY HALL AND JOHN THOMAS WRIGHT, 0F SLOCOMB, ARKANSAS.

NUT-LOCK.

To all whom it may concern:

Be it known that we, HOLLY HALL and JOHN THOMAS i/Vnrcrrr, citizens of the United States, residing at Slocomb, in the county of Saline and State of Arkansas, have invented certain new and useful Tmprovements in Nut-Locks, of which the following is a specification.

The present invention relates to improvements in nut locks, and is designed especially for use in locking nuts on bolts which secure fish plates in rail joints for railroads.

The primary object of the invention is the pro-vision of a simple, but efficient, locking means for the purpose which may be produced at comparatively slight expense, and which may be applied with facility to look a nut on a bolt against dislodgment or turning.

The invention consists essentially in providing a single, integral, metallic piece, struck up to shape for embracing a nut, and fashioned with a locking tongue and bracing foot, as will be hereinafter described and claimed.

In the accompanying drawings we have illustrated one complete example of the physical embodiment of our invention constructed according to the best mode we have so far devised for the practical application of the principles of the invention.

Figure 1 is a transverse section of a railroad rail with fish plates bolted thereto, and our nut lock applied to the nuts. Fig. 2 is a side view of Fig. 1. Fig. 3 shows a nut in section and our locking device applied thereto. Fig. 1 is a perspective view of our locking device before its application to a nut.

In the preferred embodiment of our invention we employ a metallic, or sheet metal, integral blank, from which the locking device is stamped or out. In fashioning the locking device it is provided with two sides or wings 1, 1, rectangular in shape and adapted to lie fiat against the sides of the nut. These wings or sides pieces are joined at the bottom by plate 2, from which extends an elongated tongue 3 formed with a reduced end 8. A vertical web 4 ex- Specification of Letters Patent.

Application filed April 24, 1913.

Patented Dec. 16,1913.

Serial No. 763,405.

tends downward from the bottom plate 2 and at right angles thereto, and from this web is projected the foot brace 5.

In thedrawings we have illustrated a joint between the two rail ends 6 and 7 which are secured by the bolts 8, 8, and nuts 9 the usual fish plate 10 being employed.

The nut locking device is applied after the nut has been screwed home. Vfith the parts of the locking device bent as shown in Fig. 4, the device is applied to the nut with the side wings 1, 1, embracing the sides of the nut, the bottom plate 2 at the underside, the web 4- lying flat against the vertical portion of the fish plate, and the foot 5 resting upon the fiat portion of the fish plate. The tongue 3 is now bent on the line of its juncture with the bottom plate 2, upwardly, and the end is extended over the top of the nut 9. One side face of the nut is provided with a slot 9 for the reception of the end of the tongue 3, and the end of the tongue is bent down and shoved into the slot. Or if necessary a hammer blow may be resorted to drive the tongueinto the slot. In actual practice all four sides of the nut may be provided with slots 9, as indicated in dotted lines Fig. 3, and any one of these four slots may receive the end of the tongue. When the tongue is inserted. and frictionally held, in the slot 9 the nut is prevented from turning on the bolt, as it is securely locked by the tongue, and the side wings 1, 1, and bottom plate 2 also aid in holding the nut in place. The foot portion 5 prevents the bodily movement of the nut and locking device, and positively holds the parts against turning.

The material of the locking device may be flexible or malleable, but in any event will be tempered to a condition suitable for the purpose for which the device is intended.

From the above description taken in con nection with the drawings it is believed'the meritorious features and advantages of the present invention will be evident, and a device has been described which will fulfil the objects set forth as the purpose of the invention.

Having thus fully described our invention, What We claim as new and desire to seand foot brace engaging the fish plate, and

cure by Letters Patent is a flexible tongue properly bent and having 1. The combination with a bolt and slotits end inserted in the slot of the nut. ted nut of a locking device comprising an In testimony whereof We aflix our signa- 15 intlegi'alinlembeg embracicpg tlgle nut and protures in presence of tWo Witnesses. Vic ed witi a race, an a eXible tongue having its end inserted in the slot of the nut. WEIGHT 2. The combination with a bolt and slotted nut and a fish plate of a rail joint, of WVitnesses: a locking device having side Wings and a' G. F. GOODYEAR,

bottom plate engaging the nut and a Web E. H. BECE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

